Dynamic Effects on Fracture Surface Formation in Brittle Polymers (2nd Report, Examination of Surface Markings)

Kazuo Arakawa, Kiyoshi Takahashi

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    Abstract

    The dynamic fracture surface formation of PMMA and epoxy was studied. Fracture parameters such as crack velocity a and crack extension resistance R∗ were obtained by high-speed photography of fracture caustic images. The density of surface marking was also obtained by examination of the fracture surfaces. Correlations between the density,μ and the fracture parameters have shown that, although μ depends on a or on R∗, μ is not a unique function of one of those parameters. It is found that μ has the best correlation with the product R∗-d, i. e. dissipated energy per unit crack front and unit time.

    Original languageEnglish
    Pages (from-to)2128-2133
    Number of pages6
    JournalTransactions of the Japan Society of Mechanical Engineers Series A
    Volume53
    Issue number495
    DOIs
    Publication statusPublished - 1987

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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